W. Timothy Gallwey is an author who has written a series of books in which he has set forth a methodology for coaching and for the development of personal and professional excellence in a variety of f…
Robert Toru Kiyosaki is an American businessman and author, known for the Rich Dad Poor Dad series of personal finance books. He is the founder of the Rich Dad Company, a private financial education c…
Oskari Saari on toimittaja ja tietokirjailija. Hän on aiemmin kirjoittanut muun muassa teoksen Aki Hintsa – Voittamisen anatomia, joka on yksi menestyneimmistä tietokirjoista Suomessa kautta aikojen.
